Question

how to solve square root of (a+9)^2

Answer 1

Hint: \[(\sqrt{a})^2 = a\]

Answer 2

a+9?

Answer 3

yep

Answer 4

This symbol means square root - @. What about (2@7-6@5)(3@7+9@5)

Answer 5

\[(2\sqrt{7}-6\sqrt{5})(3\sqrt{7}+9\sqrt{5})\]

Answer 6

Thank you for rewriting that...checking..

Answer 7

That will become
\[2\sqrt{7}(3\sqrt{7}+9\sqrt{5})-6\sqrt{5}(3\sqrt{7}+9\sqrt{5})\]

Answer 8

Then do the multiplication...
\[42+18\sqrt{35}-18\sqrt{35}-270\]

Answer 9

Are you okay till this point?

Answer 10

Still there?

Answer 11

I am still here. My computer is very slow beacuse it is raining very bad outside. I think they answer to this question if -228?

Answer 12

Very correct. Glad you understand. :)

Answer 13

A little rusty!!! I haven't done algebra in 11 years

Answer 14

Wow. that's a long time :)

Answer 15

Here is another one. t^2-81/(t+9)^2

Answer 16

Is the answer 0

Answer 17

working...

Answer 18

sorry, no. it's (t-9)/(t+9)

Answer 19

can u identify where you went wrong?

Answer 20

Yes. I am now working on another problem What is a discrimiant?

Answer 21

-6x^2+4x-9=0

Answer 22

Helping out sum1 else, wait a bit @LilJuneau13